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Best Books To Read Online Apps

250+ iOS apps curated and reviewed

4.5 avg rating
20 free apps
Updated August 2026

Looking for free books to read online apps? 20 of our 250+ tracked titles are free to download — no subscription, no trial. The rest are premium picks worth paying for.

Compare top Books To Read Online Apps (August 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Amazon Kindle: Reading AppAmazon Kindle: Reading AppFree4.9★ (5.8M)NoNoAug 2026
2Apple BooksApple BooksFree4.4★ (86K)NoNoAug 2026
3Libby, the library appLibby, the library appFree4.9★ (4.4M)NoNoAug 2026
4Goodreads: Book Tracker & MoreGoodreads: Book Tracker & MoreFree4.8★ (742K)NoNoAug 2026
5Learn To Read And Listen Easy English books OnlineLearn To Read And Listen Easy English books OnlineFree5.0★ (1)NoNoMay 2026
6ThreadsThreadsFree4.6★ (2.1M)YesYesAug 2026
7Google Play Books & AudiobooksGoogle Play Books & AudiobooksFree4.4★ (9.6K)NoNoAug 2026
8ReadFlow:Web Novel AI ReaderReadFlow:Web Novel AI ReaderFree—NoNoJul 2026

Top Picks for Books To Read Online

Amazon Kindle: Reading App#1

Amazon Kindle: Reading App by AMZN Mobile LLC

Read books. Millions of ebooks
Editor's Choice
📚 Books
4.9😊(5.8M ratings)
FreeIn-App Purchases
#4in Books
Amazon Kindle: Reading App screenshot 1
Amazon Kindle: Reading App screenshot 2
Amazon Kindle: Reading App screenshot 3
Amazon Kindle: Reading App screenshot 4
Amazon Kindle: Reading App screenshot 5
Amazon Kindle: Reading App screenshot 6

Access a vast library of eBooks, magazines, and comics on your mobile device. Customize your reading experience with adjustable text, brightness, and page-turning options. Look up words, track progress, and sync across devices.

What We Love

  • 📚 Huge library of books
  • 📱 Portable and convenient
  • 🔍 Useful features like dictionary lookup and highlighting
  • 🌙 Adjustable reading settings (font, brightness, etc.)

Room to Improve

  • 🛒 Cannot purchase books directly in the app
  • 🗂️ Difficulty organizing and managing large book libraries
  • 🔍 Inconsistent behavior when highlighting/taking notes
Apple Books#2

Apple Books by Apple Inc.

Read, listen, discover.
Strong Contender
📚 Books
4.4😐(86K ratings)
Free
Apple Books screenshot 1
Apple Books screenshot 2
Apple Books screenshot 3
Apple Books screenshot 4
Apple Books screenshot 5

Discover, read, and listen to millions of books and audiobooks. Browse curated collections, personalized recommendations, and bestsellers. Customize your reading experience with various themes and settings, and set reading goals to build a habit. Share your library with family.

What We Love

  • 🚀 Seamless integration across devices
  • 📚 Vast library of books available
  • 👍 User-friendly interface
  • 🎧 Exceptional audiobook experience

Room to Improve

  • 🐛 Books get deleted from local storage
  • 🐛 Unreliable syncing between devices
  • 🔒 Lack of audio closed captions
Libby, the library app#3

Libby, the library app by OverDrive, Inc.

Library audiobooks and ebooks
Worth Considering
📚 Books
4.9😊(4.4M ratings)
Free
#3in Books
Libby, the library app screenshot 1
Libby, the library app screenshot 2
Libby, the library app screenshot 3
Libby, the library app screenshot 4
Libby, the library app screenshot 5
Libby, the library app screenshot 6

Access millions of free ebooks and audiobooks from your local library. Borrow titles instantly with your library card, download for offline enjoyment, and enjoy a customizable reading and listening experience.

What We Love

  • 📚 Extensive library of books and audiobooks
  • 🔍 Convenient search and browsing features
  • 🔖 Easy to manage holds and returns
  • 🔄 Seamless syncing across devices

Room to Improve

  • 🕰️ Long wait times for popular titles
  • 🔍 Confusing search and filtering options
  • 🤯 Buggy and unstable performance

More Books To Read Online apps to explore

4
Goodreads: Book Tracker & More
Goodreads: Book Tracker & More
Goodreads: Book Tracker & More
Reviews, lists & reading goals
Free

This app connects you with a vast community of readers to discover new books. Get personalized recommendations, track your reading progress, and see what your friends are enjoying. Scan book barcodes in stores to add them to your wish list and read reviews before you buy.

Personalized book recommendationsReading challenge participationBook cover and barcode scanner
📚 Books
(742K)
free with in-app purchases
5
Learn To Read And Listen Easy English books Online
Learn To Read And Listen Easy English books Online
Learn To Read And Listen Easy English books Online
Reading Comprehension Games
Free

This app helps adults and children learn everyday English vocabulary and grammar. It focuses on time sequencing, daily routines, and reading analogue clocks. It's a free resource for ESL learners to improve their comprehension and language skills.

Daily language learningTime sequencing practiceAnalogue clock reading
📚 Education
(1)
free
6
Threads
Threads
Threads
Join the conversation
Free

Connect and share your thoughts on a platform designed for conversation. Discover trending topics, join communities based on your interests, and engage in discussions through text, images, and polls. You can also control your experience with privacy settings and direct messaging.

Start conversations with text, images, polls, and moreJoin discussions through repliesStay updated on trending topics
🌐 Social Networking
(2.1M)
free with in-app purchases
7
Google Play Books & Audiobooks
Google Play Books & Audiobooks
Google Play Books & Audiobooks
Books & Audiobooks
Free

Access millions of ebooks, audiobooks, comics, and manga in one app. Organize your library, enjoy customizable reading and listening experiences, and take your stories anywhere, even offline. Features include smart notes, kid-friendly tools, and voice control for audiobooks.

Millions of ebooks, audiobooks, comics, mangaOffline reading and listeningCustomizable library shelves
📚 Books
(9.6K)
free with in-app purchases
8
ReadFlow:Web Novel AI Reader
ReadFlow:Web Novel AI Reader
ReadFlow:Web Novel AI Reader
Webnovel Reader & Audio
Free
📚 Books
(0)
9
FreeBooks: 76,000 Top Reads
FreeBooks: 76,000 Top Reads
FreeBooks: 76,000 Top Reads
World's Largest Open Library
Free

Access a vast digital library with over 76,000 free books across all genres. Discover new titles, personalize your reading experience, and download books for offline enjoyment. Find your next favorite read, from classics to modern bestsellers.

76,000+ BooksPowerful SearchPersonalized Reading
📚 Books
(2.5K)
free with in-app purchases
10
Books Guru It's Time to Read
Books Guru It's Time to Read
Books Guru It's Time to Read
Online pdf books mega library
Free

Access a vast online library of free books and documents. Download PDFs directly from the web using the built-in browser and read them offline. Organize your library with favorites, bookmarks, and search functionalities.

Online library with diverse book typesDirect PDF download from webOffline reading and local storage
📚 Books
(8)
free with in-app purchases
11
Readeat – online book reader
Readeat – online book reader
Readeat – online book reader
My books & audiobooks offline
Free
📚 Books
(0)
12
INKtoon: Comics Webtoon Reader
INKtoon: Comics Webtoon Reader
INKtoon: Comics Webtoon Reader
Read Manhwa, Manga & Novels
Free

Explore a vast collection of manga, comics, and webtoon stories across popular genres like Romance, Drama, and Action. Discover trending titles, get personalized recommendations, and build your own library of favorite series for an immersive reading experience.

Immersive reading experienceBinge-worthy series collectionPersonalized recommendations
📚 Books
(1)
ad-supported
13
Author.Today - Books online
Author.Today - Books online
Author.Today - Books online
E-books and audiobooks
Free

Access a vast library of Russian-language e-books and audiobooks across popular genres. Engage with authors, follow ongoing series, and build your personal collection with offline reading capabilities.

Extensive Russian-language libraryFantasy, sci-fi, romance, mystery genresFollow favorite authors and series
📚 Books
(3)
free
14
ReadWave
ReadWave
ReadWave
Your Daily Fiction Companion
Free

Immerse yourself in captivating stories with this premium novel reading app. Discover a vast library of serialized and complete fiction across various genres, with personalized recommendations and a comfortable, distraction-free reading experience. Unlock exclusive content through membership.

Wide collection of novelsSmooth reading experienceSmart content recommendations
📚 Books
(2)
free with in-app purchases
15
EverStory: Web Novels
EverStory: Web Novels
EverStory: Web Novels
Immersive Web Novels & Stories
Free
📚 Books
(0)
16
LunaRead: Romance & Fantasy
LunaRead: Romance & Fantasy
LunaRead: Romance & Fantasy
Romance & Werewolf Novels
Free

Access a vast collection of online fiction novels across popular genres like romance, fantasy, and sci-fi. Discover trending stories and e-book style reads conveniently on your phone, perfect for any reading occasion.

Extensive novel libraryMultiple popular genresTrending online fiction
📚 Books
(204)
freemium
17
Reading A Book Online Plus Answers For First Grade
Reading A Book Online Plus Answers For First Grade
Reading A Book Online Plus Answers For First Grade
by Sirinthip Rungratikulthon
Free

This free online application helps users of all ages expand their vocabulary and background knowledge through fun reading comprehension exercises. It's designed for both native English speakers and those learning English as a second language, covering grammar and sight words.

Vocabulary expansionBackground knowledge buildingGrammar practice
📚 Education
(3)
free
18
Reading Comprehension English Quizzes Plus Answers
Reading Comprehension English Quizzes Plus Answers
Reading Comprehension English Quizzes Plus Answers
Easy Read English Books Online
Free

Enhance English vocabulary and rhyming skills with interactive stories and audio. Designed for preschoolers, kindergarteners, and ESL learners, it aids in word recognition and comprehension.

Improve English vocabularyIncrease rhyming word recognitionAudio sound for pronunciation
📚 Education
(1)
free
19
Read - Focused Reading
Read - Focused Reading
Read - Focused Reading
Read news without distraction
Free
📡 News
(0)
20
MOBS: My Online Bookshelf
MOBS: My Online Bookshelf
MOBS: My Online Bookshelf
Book Tracker and Cozy Shelf
Free

Catalog your books, track your reading, and build a beautiful virtual bookshelf. Organize your entire library with features like barcode scanning, custom shelves, and decorative elements. Sync your collection across devices and share your progress.

Scan barcodes or search to add booksOrganize by title, author, genre, or formatCreate custom virtual shelves
📚 Books
(2)
free

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FAQ about Books To Read Online

What are the best books to read online apps for iPhone?
Amazon Kindle: Reading App tops our books to read online apps ranking as of August 2026, with a 4.9-star average from 5.8M App Store ratings, and it's free to download.
Yes — 20 of the top books to read online apps we rank are free to download, including Amazon Kindle: Reading App and Apple Books.
Amazon Kindle: Reading App has no ads and has no in-app purchases, according to its App Store listing as of August 2026.
We track 250+ books to read online apps on the iOS App Store as of August 2026, ranked by rating, recency, and analysis of real user reviews.
You can read eBooks, magazines, and comics that you have purchased on Amazon. The app also provides access to titles included with Kindle Unlimited and Amazon Prime memberships.
You can customize text size, font type, margins, text alignment, and orientation. You can also adjust brightness and background colors for comfortable reading day or night.